<!-- 父级组件:控制除登录以外所有页面的共有头部与左侧菜单栏 -->
<template>
  <div style="display: flex">
    <div :style="{width:(isCollapse? '64px' : '208px')}">
      <!-- 左侧菜单栏 -->
      <el-menu
          background-color="#3c82f5"
          style="height: 100vh;"
          text-color="#fff"
          active-text-color="#ff0"
          :collapse="isCollapse"
          unique-opened
          :collapse-transition="false"
          router
      >
        <!-- 左侧菜单栏定部条 -->
        <el-row style="padding-top: 10px">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 8px">
            <el-avatar src="/imgs/admin/logo.png" style="width: 35px;height: 35px;"></el-avatar>
          </el-col>
          <el-col :span="isCollapse? 0 : 13">
            <span style="color: #FFF;font-weight: bold;position: relative;top:8px;left: 2px;">智慧车辆</span>
          </el-col>
        </el-row>


        <el-sub-menu index="1">
          <template #title>
            <el-icon style="font-size: 21px">
              <User/>
            </el-icon>
            <span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px">
              <Van/>
            </el-icon>
            <span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">车辆列表</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px">
              <Location/>
            </el-icon>
            <span>围栏管理</span>
          </template>
          <el-menu-item index="/geofence">电子围栏</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px">
              <Place/>
            </el-icon>
            <span>调度管理</span>
          </template>
          <el-menu-item index="/application">用车申请</el-menu-item>
          <el-menu-item index="/audit">用车审批</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px">
              <MessageBox/>
            </el-icon>
            <span>字典管理</span>
          </template>
          <el-menu-item index="/dict">字典列表</el-menu-item>
        </el-sub-menu>

      </el-menu>
    </div>
    <div :style="{width:(isCollapse? 'calc(100% - 64px)' : 'calc(100% - 208px)')}">
      <!-- 右侧顶部条:折叠图标+ -->
      <el-header style="height: 10vh;background-color: #fff;padding-top: 22px">
        <el-row>
          <el-col :span="18">
            <el-icon style="font-size: 21px" @click="changeCollapsed">
              <Expand/>
            </el-icon>
          </el-col>
          <el-col :span="6" style="position: relative;">
            <el-dropdown trigger="click" style="position: absolute;right: 20px;">
              <span style="font-size: 19px;font-weight: bold">
                {{user.username}}
                <el-icon><arrow-down/></el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
        <!-- 右侧顶部条:面包屑导航 -->
        <el-breadcrumb separator="/" style="position: relative;top: 20px;">
          <el-breadcrumb-item>首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
<!--          <el-breadcrumb-item>用户管理</el-breadcrumb-item>-->
<!--          <el-breadcrumb-item>用户列表</el-breadcrumb-item>-->
        </el-breadcrumb>
      </el-header>
      <!-- 右侧可变区域 -->
      <el-main style="padding: 0;height: 90vh;overflow-y:auto; ">
        <router-view/>
      </el-main>


    </div>
  </div>
</template>

<script setup>

import {onMounted, ref} from "vue";
import {useRoute, useRouter} from "vue-router";

const isCollapse = ref(true);

const changeCollapsed = () => {
  isCollapse.value = !isCollapse.value
};

const user = ref(getUser());

const logout = () => {
  if(confirm("确定退出登录吗？")){
    localStorage.removeItem('user');
    // router.push('/login');
    window.location.href = '/login';
    //情况取出来的数据
    user.value = '';
  }
};

//定义数组存储当前面包屑导航栏显示的值
const breadcrumb = ref(['用户列表','用户信息']);

let map = {
  '/user':['用户管理','用户列表'],
  '/vehicle':['车辆管理','车辆列表'],
  '/geofence':['围栏管理','电子围栏'],
  '/application':['调度管理','申请列表'],
  '/audit':['调度管理','调度审核'],
  '/distribute':['调度管理','用车分配'],
  '/dict':['字典管理','字典列表'],
  '/geofenceMap':['围栏管理','围栏绘制'],
  '/dictOption':['围栏管理','字典项管理']
}

//useRoute()方法是获取当前路由对象
const route = useRoute();
//自定义更新面包屑导航栏的函数
const updateBreadcrumb = (route) => {
  // 获取当前路由对象中的path属性
  const path = route.path;
  //根据path属性，从map对象中获取对应的面包屑导航栏显示的值
  breadcrumb.value = map[path];
};

//一进入页面，就调用updateBreadcrumb()函数
onMounted(() => {
  updateBreadcrumb(route);
})
//获取守卫,监听路由,只要更新路由，就会执行updateBreadcrumb()函数
const router = useRouter();
router.beforeEach((to, from) => {
  updateBreadcrumb(to);
})


</script>




















































